-In Figure 9-13,the Movement of Equilibrium from Point D to Point

-In Figure 9-13,the movement of equilibrium from point D to point C could be caused by

A) a decrease in supply from S₂ to S₁ in response to economic profits following a decrease in demand from D₂ to D₁
B) a short-run increase in supply from S₁ to S₂
C) an increase in supply from S₁ to S₂ in response to economic profits following an increase in demand from D₁ to D₂
D) external economies
E) in the short run,by an increase in demand from D₁ to D₂